[Steve C.]

Looking at my Isky catalog it appears you can get the tall lifter body needed and because the link bars are removable order a Pontiac GB-900 link bar set. Remove the BBC style link bar, then slip on the straight style Pontiac link bar.

Where as the Crower lifters appear to have a fixed link bar that is not removeable, thus to get the right lift bar it may need to be custom.
(like I got)

The Crower 66295 is listed as Pontiac with offset. Its under the catagory of Cutaway Severe-Duty roller lifters with the note that these types of lifters have "a blade that's been moved up to fit late model blocks". I suspect that's just a generic statement and really doesn't apply to a Pontiac. But if is in fact moved up on this piticular lifter then it could work in the IA II blk, this would need to be varified. The discription also states the offset for these lifters is 0.180

As we have discoverd the Crower Hi-seat liters with the 0.200 offset listed for SBC (p/n 66275) will apparantly not work in the IA II blk without modification to the block itself.